* [alternative-merged] copy_process-fixed-jump-logic-error.patch removed from -mm tree
@ 2025-09-26 19:55 Andrew Morton
0 siblings, 0 replies; only message in thread
From: Andrew Morton @ 2025-09-26 19:55 UTC (permalink / raw)
To: mm-commits, oleg, kees, david, eadavis, akpm
The quilt patch titled
Subject: copy_process(): fix jump logic error
has been removed from the -mm tree. Its filename was
copy_process-fixed-jump-logic-error.patch
This patch was dropped because an alternative patch was or shall be merged
------------------------------------------------------
From: Edward Adam Davis <eadavis@qq.com>
Subject: copy_process(): fix jump logic error
Date: Wed, 24 Sep 2025 20:06:21 +0800
After futex_hash_allocate_default() fails, the logic should jump to
bad_fork_cancel_cgroup, not bad_fork_core_free.
Jumping to bad_fork_core_free would cause a siglock imbalance.
Link: https://lkml.kernel.org/r/tencent_5E4F978D9525A58D97925ADDBADDB2193107@qq.com
Signed-off-by: Edward Adam Davis <eadavis@qq.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Kees Cook <kees@kernel.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
kernel/fork.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/kernel/fork.c~copy_process-fixed-jump-logic-error
+++ a/kernel/fork.c
@@ -2293,7 +2293,7 @@ __latent_entropy struct task_struct *cop
if (need_futex_hash_allocate_default(clone_flags)) {
retval = futex_hash_allocate_default();
if (retval)
- goto bad_fork_core_free;
+ goto bad_fork_cancel_cgroup;
/*
* If we fail beyond this point we don't free the allocated
* futex hash map. We assume that another thread will be created
_
Patches currently in -mm which might be from eadavis@qq.com are
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2025-09-26 19:55 [alternative-merged] copy_process-fixed-jump-logic-error.patch removed from -mm tree Andrew Morton
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